title: Xanthogranulomatous pyelonephritis in a child: preoperative x-ray diagnosis.
mesh_terms: D002675:Child, Preschool; D006801:Humans; D008297:Male; D011704:Pyelonephritis / Q000000981:diagnostic imaging*; D011859:Radiography; D014972:Xanthogranuloma, Juvenile / Q000000981:diagnostic imaging*